This new series of films were not carefully pre-planned. This is just more proof of that fact. It also has been revealed Rian Johnson was not given a direction to go in after JJ Abram's The Force Awakens. Instead, Rian undid things setup in the first film to such a degree that it made Abram's laugh. Of course he has went into damage control mode saying that Johnson didn't screw things up, but clearly he did. Luke Skywalker actor Mark Hammil also very strongly alluded to this, but also played the part of good company man as best he could.
Palpatine an afterthought...
https://youtu.be/G_TuvGFOJDo
https://www.google.com/amp/s/www.express.co.uk/entertainment/films/1207673/Star-Wars-9-JJ-Abrams-Rian-Johnson-Last-Jedi-Rise-Skywalker-fan-backlash-release-date/amp
https://www.google.com/amp/s/www.indiewire.com/2018/03/mark-hamill-the-last-jedi-demoralized-the-last-jedi-sxsw-2018-1201938578/amp/
